Re: [Asrg] Some data on the validity of MAIL FROM addresses

["Jon Kyme" <[e-mail]>]

>The biggest practical problems I can think of for per-user filters
>using the milter mechanism are that sendmail wants to do things
>with the UID "daemon" or equivalent and that the SMTP protocol
>doesn't let the SMTP server answer the DATA command with "250-ok
>for Rcpt #1, 550-spam for Rcpt #2, and 450-try-later for Rcpt #3."
>


Personally, I think the easiest solution to this problem is to modify the
semantics of 250 after DATA such that in the case of a message with
multiple RCPT TO we shouldn't *require* that a notification be generated
for a "delivery failure" if this "failure" is an action requested by a
mailbox "owner".

Such a change would effectively give different QOS to the two classes of
messages.

If a sender needs the higher QOS then it needs to stick to one RCPT TO per
message, a sender that doesn't need it (or doesn't care) can
bundle them.







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